129440860

素因数分解:

$2^2\times 5^1\times {\mathrm{331}}^1\times {\mathrm{19553}}^1$

素因数の和:19893

約数の個数: 24

約数和(自身を含む): 272660976

約数和(自身を除く): 143220116

約数列:

[1, 2, 4, 5, 10, 20, 331, 662, 1324, 1655, 3310, 6620, 19553, 39106, 78212, 97765, 195530, 391060, 6472043, 12944086, 25888172, 32360215, 64720430, 129440860]

約数ペア:

[(1, 129440860), (2, 64720430), (4, 32360215), (5, 25888172), (10, 12944086), (20, 6472043), (331, 391060), (662, 195530), (1324, 97765), (1655, 78212), (3310, 39106), (6620, 19553)]